btrfs-progs: dump-tree: improved error handling in cmd_inspect_dump_tree

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/cmds-inspect-dump-tree.c b/cmds-inspect-dump-tree.c
index cfe7507..fcc5634 100644 (file)
--- a/cmds-inspect-dump-tree.c
+++ b/cmds-inspect-dump-tree.c
@@ -390,7 +390,12 @@ again:
        key.objectid = 0;
        btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
        ret = btrfs_search_slot(NULL, tree_root_scan, &key, &path, 0, 0);
-       BUG_ON(ret < 0);
+       if (ret < 0) {
+               error("cannot read ROOT_ITEM from tree %llu: %s",
+                       (unsigned long long)tree_root_scan->root_key.objectid,
+                       strerror(-ret));
+               goto close_root;
+       }
        while (1) {
                leaf = path.nodes[0];
                slot = path.slots[0];
@@ -537,8 +542,7 @@ next:
 no_node:
        btrfs_release_path(&path);
 
-       if (tree_root_scan == info->tree_root &&
-           info->log_root_tree) {
+       if (tree_root_scan == info->tree_root && info->log_root_tree) {
                tree_root_scan = info->log_root_tree;
                goto again;
        }